中文摘要：

分别采用BET法、BJH法和HK法测定了石煤原矿、石煤750℃焙烧渣、1 050℃焙烧渣3种样品的比表面积、中孔和微孔分布.结果表明,石煤原矿中主要以中孔为主,最可几孔径为4 nm,主要为墨水瓶状孔;750℃焙烧3 h,由于有机质氧化,原矿中微孔减少,中孔增加;1 050℃焙烧3 h,孔数量急剧减少,大量中孔和微孔消失,只有少量大孔,比表面积显著减小.

英文摘要：

Specific surface area,mesopore size distribution and micropore size distribution of stone coal,calcinate of stone coal at 750 ℃ and calcinate of stone coal at 1 050 ℃ were investigated by BET method,BJH method and HK method respectively.It indicated that the pore of stone coal ore is structured mainly by ink-bottle-like mesopore,and the most probable pore size is 4 nm.After roasted at 750 ℃ for 3 h,the organic matters in stone coal were oxidated,resulting in remarkable drop in the number of micropore and an increase in the numbers of mesopore.After roasted at 1 050 ℃ for 3 h,most of mesopore and micropore disappeared,only very little megalospore remained,and the specific surface area sharply reduced.